Without delay, let's solve this. We've got 70 and we will be multiplying it by 341, that is, adding 70 to itself 341 times.
Step 1: 0 + 70 = 70
Step 2: 70 + 70 = 140
Step 3: 140 + 70 = 210
Step 4: 210 + 70 = 280
Step 5: 280 + 70 = 350
Step 6: 350 + 70 = 420
Step 7: 420 + 70 = 490
Step 8: 490 + 70 = 560
Step 9: 560 + 70 = 630
Step 10: 630 + 70 = 700
Step 11: 700 + 70 = 770
Step 12: 770 + 70 = 840
Step 13: 840 + 70 = 910
Step 14: 910 + 70 = 980
Step 15: 980 + 70 = 1050
Step 16: 1050 + 70 = 1120
Step 17: 1120 + 70 = 1190
Step 18: 1190 + 70 = 1260
Step 19: 1260 + 70 = 1330
Step 20: 1330 + 70 = 1400
Step 21: 1400 + 70 = 1470
Step 22: 1470 + 70 = 1540
Step 23: 1540 + 70 = 1610
Step 24: 1610 + 70 = 1680
Step 25: 1680 + 70 = 1750
Step 26: 1750 + 70 = 1820
Step 27: 1820 + 70 = 1890
Step 28: 1890 + 70 = 1960
Step 29: 1960 + 70 = 2030
Step 30: 2030 + 70 = 2100
Step 31: 2100 + 70 = 2170
Step 32: 2170 + 70 = 2240
Step 33: 2240 + 70 = 2310
Step 34: 2310 + 70 = 2380
Step 35: 2380 + 70 = 2450
Step 36: 2450 + 70 = 2520
Step 37: 2520 + 70 = 2590
Step 38: 2590 + 70 = 2660
Step 39: 2660 + 70 = 2730
Step 40: 2730 + 70 = 2800
Step 41: 2800 + 70 = 2870
Step 42: 2870 + 70 = 2940
Step 43: 2940 + 70 = 3010
Step 44: 3010 + 70 = 3080
Step 45: 3080 + 70 = 3150
Step 46: 3150 + 70 = 3220
Step 47: 3220 + 70 = 3290
Step 48: 3290 + 70 = 3360
Step 49: 3360 + 70 = 3430
Step 50: 3430 + 70 = 3500
Step 51: 3500 + 70 = 3570
Step 52: 3570 + 70 = 3640
Step 53: 3640 + 70 = 3710
Step 54: 3710 + 70 = 3780
Step 55: 3780 + 70 = 3850
Step 56: 3850 + 70 = 3920
Step 57: 3920 + 70 = 3990
Step 58: 3990 + 70 = 4060
Step 59: 4060 + 70 = 4130
Step 60: 4130 + 70 = 4200
Step 61: 4200 + 70 = 4270
Step 62: 4270 + 70 = 4340
Step 63: 4340 + 70 = 4410
Step 64: 4410 + 70 = 4480
Step 65: 4480 + 70 = 4550
Step 66: 4550 + 70 = 4620
Step 67: 4620 + 70 = 4690
Step 68: 4690 + 70 = 4760
Step 69: 4760 + 70 = 4830
Step 70: 4830 + 70 = 4900
Step 71: 4900 + 70 = 4970
Step 72: 4970 + 70 = 5040
Step 73: 5040 + 70 = 5110
Step 74: 5110 + 70 = 5180
Step 75: 5180 + 70 = 5250
Step 76: 5250 + 70 = 5320
Step 77: 5320 + 70 = 5390
Step 78: 5390 + 70 = 5460
Step 79: 5460 + 70 = 5530
Step 80: 5530 + 70 = 5600
Step 81: 5600 + 70 = 5670
Step 82: 5670 + 70 = 5740
Step 83: 5740 + 70 = 5810
Step 84: 5810 + 70 = 5880
Step 85: 5880 + 70 = 5950
Step 86: 5950 + 70 = 6020
Step 87: 6020 + 70 = 6090
Step 88: 6090 + 70 = 6160
Step 89: 6160 + 70 = 6230
Step 90: 6230 + 70 = 6300
Step 91: 6300 + 70 = 6370
Step 92: 6370 + 70 = 6440
Step 93: 6440 + 70 = 6510
Step 94: 6510 + 70 = 6580
Step 95: 6580 + 70 = 6650
Step 96: 6650 + 70 = 6720
Step 97: 6720 + 70 = 6790
Step 98: 6790 + 70 = 6860
Step 99: 6860 + 70 = 6930
Step 100: 6930 + 70 = 7000
Step 101: 7000 + 70 = 7070
Step 102: 7070 + 70 = 7140
Step 103: 7140 + 70 = 7210
Step 104: 7210 + 70 = 7280
Step 105: 7280 + 70 = 7350
Step 106: 7350 + 70 = 7420
Step 107: 7420 + 70 = 7490
Step 108: 7490 + 70 = 7560
Step 109: 7560 + 70 = 7630
Step 110: 7630 + 70 = 7700
Step 111: 7700 + 70 = 7770
Step 112: 7770 + 70 = 7840
Step 113: 7840 + 70 = 7910
Step 114: 7910 + 70 = 7980
Step 115: 7980 + 70 = 8050
Step 116: 8050 + 70 = 8120
Step 117: 8120 + 70 = 8190
Step 118: 8190 + 70 = 8260
Step 119: 8260 + 70 = 8330
Step 120: 8330 + 70 = 8400
Step 121: 8400 + 70 = 8470
Step 122: 8470 + 70 = 8540
Step 123: 8540 + 70 = 8610
Step 124: 8610 + 70 = 8680
Step 125: 8680 + 70 = 8750
Step 126: 8750 + 70 = 8820
Step 127: 8820 + 70 = 8890
Step 128: 8890 + 70 = 8960
Step 129: 8960 + 70 = 9030
Step 130: 9030 + 70 = 9100
Step 131: 9100 + 70 = 9170
Step 132: 9170 + 70 = 9240
Step 133: 9240 + 70 = 9310
Step 134: 9310 + 70 = 9380
Step 135: 9380 + 70 = 9450
Step 136: 9450 + 70 = 9520
Step 137: 9520 + 70 = 9590
Step 138: 9590 + 70 = 9660
Step 139: 9660 + 70 = 9730
Step 140: 9730 + 70 = 9800
Step 141: 9800 + 70 = 9870
Step 142: 9870 + 70 = 9940
Step 143: 9940 + 70 = 10010
Step 144: 10010 + 70 = 10080
Step 145: 10080 + 70 = 10150
Step 146: 10150 + 70 = 10220
Step 147: 10220 + 70 = 10290
Step 148: 10290 + 70 = 10360
Step 149: 10360 + 70 = 10430
Step 150: 10430 + 70 = 10500
Step 151: 10500 + 70 = 10570
Step 152: 10570 + 70 = 10640
Step 153: 10640 + 70 = 10710
Step 154: 10710 + 70 = 10780
Step 155: 10780 + 70 = 10850
Step 156: 10850 + 70 = 10920
Step 157: 10920 + 70 = 10990
Step 158: 10990 + 70 = 11060
Step 159: 11060 + 70 = 11130
Step 160: 11130 + 70 = 11200
Step 161: 11200 + 70 = 11270
Step 162: 11270 + 70 = 11340
Step 163: 11340 + 70 = 11410
Step 164: 11410 + 70 = 11480
Step 165: 11480 + 70 = 11550
Step 166: 11550 + 70 = 11620
Step 167: 11620 + 70 = 11690
Step 168: 11690 + 70 = 11760
Step 169: 11760 + 70 = 11830
Step 170: 11830 + 70 = 11900
Step 171: 11900 + 70 = 11970
Step 172: 11970 + 70 = 12040
Step 173: 12040 + 70 = 12110
Step 174: 12110 + 70 = 12180
Step 175: 12180 + 70 = 12250
Step 176: 12250 + 70 = 12320
Step 177: 12320 + 70 = 12390
Step 178: 12390 + 70 = 12460
Step 179: 12460 + 70 = 12530
Step 180: 12530 + 70 = 12600
Step 181: 12600 + 70 = 12670
Step 182: 12670 + 70 = 12740
Step 183: 12740 + 70 = 12810
Step 184: 12810 + 70 = 12880
Step 185: 12880 + 70 = 12950
Step 186: 12950 + 70 = 13020
Step 187: 13020 + 70 = 13090
Step 188: 13090 + 70 = 13160
Step 189: 13160 + 70 = 13230
Step 190: 13230 + 70 = 13300
Step 191: 13300 + 70 = 13370
Step 192: 13370 + 70 = 13440
Step 193: 13440 + 70 = 13510
Step 194: 13510 + 70 = 13580
Step 195: 13580 + 70 = 13650
Step 196: 13650 + 70 = 13720
Step 197: 13720 + 70 = 13790
Step 198: 13790 + 70 = 13860
Step 199: 13860 + 70 = 13930
Step 200: 13930 + 70 = 14000
Step 201: 14000 + 70 = 14070
Step 202: 14070 + 70 = 14140
Step 203: 14140 + 70 = 14210
Step 204: 14210 + 70 = 14280
Step 205: 14280 + 70 = 14350
Step 206: 14350 + 70 = 14420
Step 207: 14420 + 70 = 14490
Step 208: 14490 + 70 = 14560
Step 209: 14560 + 70 = 14630
Step 210: 14630 + 70 = 14700
Step 211: 14700 + 70 = 14770
Step 212: 14770 + 70 = 14840
Step 213: 14840 + 70 = 14910
Step 214: 14910 + 70 = 14980
Step 215: 14980 + 70 = 15050
Step 216: 15050 + 70 = 15120
Step 217: 15120 + 70 = 15190
Step 218: 15190 + 70 = 15260
Step 219: 15260 + 70 = 15330
Step 220: 15330 + 70 = 15400
Step 221: 15400 + 70 = 15470
Step 222: 15470 + 70 = 15540
Step 223: 15540 + 70 = 15610
Step 224: 15610 + 70 = 15680
Step 225: 15680 + 70 = 15750
Step 226: 15750 + 70 = 15820
Step 227: 15820 + 70 = 15890
Step 228: 15890 + 70 = 15960
Step 229: 15960 + 70 = 16030
Step 230: 16030 + 70 = 16100
Step 231: 16100 + 70 = 16170
Step 232: 16170 + 70 = 16240
Step 233: 16240 + 70 = 16310
Step 234: 16310 + 70 = 16380
Step 235: 16380 + 70 = 16450
Step 236: 16450 + 70 = 16520
Step 237: 16520 + 70 = 16590
Step 238: 16590 + 70 = 16660
Step 239: 16660 + 70 = 16730
Step 240: 16730 + 70 = 16800
Step 241: 16800 + 70 = 16870
Step 242: 16870 + 70 = 16940
Step 243: 16940 + 70 = 17010
Step 244: 17010 + 70 = 17080
Step 245: 17080 + 70 = 17150
Step 246: 17150 + 70 = 17220
Step 247: 17220 + 70 = 17290
Step 248: 17290 + 70 = 17360
Step 249: 17360 + 70 = 17430
Step 250: 17430 + 70 = 17500
Step 251: 17500 + 70 = 17570
Step 252: 17570 + 70 = 17640
Step 253: 17640 + 70 = 17710
Step 254: 17710 + 70 = 17780
Step 255: 17780 + 70 = 17850
Step 256: 17850 + 70 = 17920
Step 257: 17920 + 70 = 17990
Step 258: 17990 + 70 = 18060
Step 259: 18060 + 70 = 18130
Step 260: 18130 + 70 = 18200
Step 261: 18200 + 70 = 18270
Step 262: 18270 + 70 = 18340
Step 263: 18340 + 70 = 18410
Step 264: 18410 + 70 = 18480
Step 265: 18480 + 70 = 18550
Step 266: 18550 + 70 = 18620
Step 267: 18620 + 70 = 18690
Step 268: 18690 + 70 = 18760
Step 269: 18760 + 70 = 18830
Step 270: 18830 + 70 = 18900
Step 271: 18900 + 70 = 18970
Step 272: 18970 + 70 = 19040
Step 273: 19040 + 70 = 19110
Step 274: 19110 + 70 = 19180
Step 275: 19180 + 70 = 19250
Step 276: 19250 + 70 = 19320
Step 277: 19320 + 70 = 19390
Step 278: 19390 + 70 = 19460
Step 279: 19460 + 70 = 19530
Step 280: 19530 + 70 = 19600
Step 281: 19600 + 70 = 19670
Step 282: 19670 + 70 = 19740
Step 283: 19740 + 70 = 19810
Step 284: 19810 + 70 = 19880
Step 285: 19880 + 70 = 19950
Step 286: 19950 + 70 = 20020
Step 287: 20020 + 70 = 20090
Step 288: 20090 + 70 = 20160
Step 289: 20160 + 70 = 20230
Step 290: 20230 + 70 = 20300
Step 291: 20300 + 70 = 20370
Step 292: 20370 + 70 = 20440
Step 293: 20440 + 70 = 20510
Step 294: 20510 + 70 = 20580
Step 295: 20580 + 70 = 20650
Step 296: 20650 + 70 = 20720
Step 297: 20720 + 70 = 20790
Step 298: 20790 + 70 = 20860
Step 299: 20860 + 70 = 20930
Step 300: 20930 + 70 = 21000
Step 301: 21000 + 70 = 21070
Step 302: 21070 + 70 = 21140
Step 303: 21140 + 70 = 21210
Step 304: 21210 + 70 = 21280
Step 305: 21280 + 70 = 21350
Step 306: 21350 + 70 = 21420
Step 307: 21420 + 70 = 21490
Step 308: 21490 + 70 = 21560
Step 309: 21560 + 70 = 21630
Step 310: 21630 + 70 = 21700
Step 311: 21700 + 70 = 21770
Step 312: 21770 + 70 = 21840
Step 313: 21840 + 70 = 21910
Step 314: 21910 + 70 = 21980
Step 315: 21980 + 70 = 22050
Step 316: 22050 + 70 = 22120
Step 317: 22120 + 70 = 22190
Step 318: 22190 + 70 = 22260
Step 319: 22260 + 70 = 22330
Step 320: 22330 + 70 = 22400
Step 321: 22400 + 70 = 22470
Step 322: 22470 + 70 = 22540
Step 323: 22540 + 70 = 22610
Step 324: 22610 + 70 = 22680
Step 325: 22680 + 70 = 22750
Step 326: 22750 + 70 = 22820
Step 327: 22820 + 70 = 22890
Step 328: 22890 + 70 = 22960
Step 329: 22960 + 70 = 23030
Step 330: 23030 + 70 = 23100
Step 331: 23100 + 70 = 23170
Step 332: 23170 + 70 = 23240
Step 333: 23240 + 70 = 23310
Step 334: 23310 + 70 = 23380
Step 335: 23380 + 70 = 23450
Step 336: 23450 + 70 = 23520
Step 337: 23520 + 70 = 23590
Step 338: 23590 + 70 = 23660
Step 339: 23660 + 70 = 23730
Step 340: 23730 + 70 = 23800
Step 341: 23800 + 70 = 23870

So, 70*341 = 23870